Exploiting the Bulk Photovoltaic Effect in a 2D Trilayered Hybrid Ferroelectric for Highly Sensitive Polarized Light Detection.,Angewandte Chemie International Edition

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Exploiting the Bulk Photovoltaic Effect in a 2D Trilayered Hybrid Ferroelectric for Highly Sensitive Polarized Light Detection.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-12-30 , DOI: 10.1002/anie.201915094
Yu Peng _{1,

2} , Xitao Liu ₁ , Zhihua Sun ₁ , Chengmin Ji ₁ , Lina Li ₁ , Zhenyue Wu _{1,

3} , Sasa Wang _{1,

3} , Yunpeng Yao _{1,

2} , Maochun Hong ₁ , Junhua Luo ₁

Affiliation

Polarized light detection is attracting increasing attention for its wide applications ranging from optical switches to high-resolution photodetectors. Two-dimensional (2D) hybrid perovskite-type ferroelectrics combining inherent light polarization dependence of bulk photovoltaic effect (BPVE) with excellent semiconducting performance present significant possibilities. Now, the BPVE-driven highly sensitive polarized light detection in a 2D trilayered hybrid perovskite ferroelectric, (allyammonium)2 (ethylammonium)2 Pb3 Br10 (1), is presented. It shows a superior BPVE with near-band gap photovoltage of ca. 2.5 V and high on/off switching ratio of current (ca. 104 ). Driven by the superior BPVE, 1 exhibits highly sensitive polarized light detection with a polarization ratio as high as ca. 15, which is far more beyond than those of structural anisotropy-based monocomponent devices. This is the first realization of BPVE-driven polarized light detection in hybrid perovskite ferroelectrics.

中文翻译：

利用二维光电三层混合铁电体中的体光伏效应进行高灵敏度偏振光检测。

偏振光检测因其广泛的应用而引起了越来越多的关注，从光学开关到高分辨率光电检测器。二维（2D）混合钙钛矿型铁电体将体光伏效应（BPVE）的固有光偏振依赖性与出色的半导体性能相结合，提供了巨大的可能性。现在，提出了在二维三层杂化钙钛矿铁电体（烯丙基铵）2（乙基铵）2 Pb3 Br10（1）中由BPVE驱动的高灵敏度偏振光检测方法。它显示了一个卓越的BPVE，近带隙光电压约为。2.5 V和高的开/关电流切换比（约104）。在卓越的BPVE的驱动下，1表现出高灵敏度的偏振光检测，其偏振比高达ca。15 这远远超出了基于结构各向异性的单组件设备的范围。这是混合钙钛矿铁电体中BPVE驱动的偏振光检测的第一个实现。

更新日期：2020-01-24

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